5. PRINTED CIRCUIT BOARD- REPLACEMENT
1.
Unplug the PowerTrap's electrical connector and disconnect the gas regulator from the
propane tank.
2.
Remove the top cover. (See appendix A instructions on removing the top cover).
3.
Disconnect the six wires from their connectors located along the outside edge of the PCB.
Disconnect the thermocouple connector located at the front edge of the PCB. Disconnect the
two black wires from the connectors on the back edge of the PC board. Remove the three nuts
at the top of the board and remove the PCB from the PowerTrap..
4.
Install a new PCB and secure in place with the three nuts. Connect all wires as follows:
a). Red motor wire to motor terminal marked plus. Black motor wire to motor terminal
marked minus.
b). Red heater wires (2) to terminals marked heater.
c). White valve wires (2) to terminals marked valve.
d). Black AC power wires (2) to the AC terminals at the rear edge of the PCB.
e). Plug the thermocouple connector into the socket at the front edge of the PCB.
5.
Model MT-275 only: Connect the ribbon wire from the underside of the top cover to the PCB
taking care to engage all slots in the plug with the corresponding pins in the socket.
6.
Install the top cover by spreading the louvers at the rear of the unit to engage the boss at the
rear of the cover and secure with screw. Install the two screws in the front of the unit to secure
the top cover to the metal plate.
7.
Re-attach the PowerTrap's electrical connector and attach the gas regulator to the propane
tank.
6. MOTOR AND FAN-REPLACEMENT
1.
Unplug the PowerTrap and disconnect the gas regulator from the propane tank. Remove the
collection tray and the funnel.
2.
Remove the top cover. (See appendix A for instructions on removing the top cover.)
3.
Disconnect the two motor wires from the PCB. Remove the three nuts at the top of the board
and lift the PCB off its mounting. Feed the two motor wires down through the hole in the metal
plate (top plate) below the PCB.
4.
Remove the eight screws that secure the metal channel running along the center of the top
plate. Remove the channel and, on Model MT-275 only, remove the metal strip holding the
insulation material along the side of the channel. This will expose the black impeller and
impeller housing. Remove the impeller from its housing by prying the impeller off of the motor
shaft. .
